Yeah. My version of the portraitpackeditor saves the portraits with lowercase hair colors, so that's how the mod is configured, but if one has portraitpacks with capitalized hair colors that'll fix it. It should check the lowercase versions too, but apparently that doesn't work.

Yes, you could edit the configs, but unless you changed the code of the mod to use those new values it wouldn't change anything. The mod is not dynamic beyond its stated parameters.

Adding more scored traits or changing the mechanics of existing ones is not particularly hard, but it would likely require a small amount of programming knowledge.

Adding scarred or ugly will also need you to edit your portrait/bodies file names to match.

The file mods/randomportraits/settings.gd has the weightings if you want to change your weightings for personal use.

This is a one line amendment I made to my randomportraits.gd to skip gender if gender returns zero matches. (The indentation is important.) I expect the same can be done for race.

    # Filter on Gender
    filteringPortraits = []
    for p in validPortraits:
        if p.genders.has(person.sex):
            filteringPortraits.append(p) #Add portrait that has required sex
    if portraitSettings.debug: print('Filtered on gender %s, resulted in %d portraits.' % [person.sex, filteringPortraits.size()])
    if !filteringPortraits.empty(): #Leo gender skip if zero entries
        if (filteringPortraits.size() < portraitSettings.minMatch):
            return
        validPortraits.clear()
        validPortraits = filteringPortraits

(Technical note - I seem to remember that this file needed space characters rather than tabs to indent the text. The compiler uses the white space characters to determine which statements belong to the if statements. Experiment a little with the if you have problems.)

If you can select a slave, go to Customization, and find a button for "Random Portrait", then the mod is successfully applied. The most likely problem for applying this mod is that thanks to recent improvements the game can recognize the location of the mod better than the mod can adapt to changes in location. So it is important that the path to the info file be exactly ".../Strive/mods/randomportraits/info.txt", any differences can cause the mod to fail (unless you have assigned a new folder for mods, in which case replace the first 2 levels with that).

Note, his mod does not come with any images, so you need to download a compatible image pack. Most image packs are compatible with the mod, though they tend to be for the pre-1.0 races (before Dark Elves became Tribal Elves, and Drow became Dark Elves). It is usually fairly straight-forward to rename the race folders to switch to the 1.0 races.

The Discord (https://itch.io/t/284398/discord) is generally a better place for answers, but people occasionally check here.

I haven't seen anyone who knows what they are doing talk about putting images in ".../AppData/Roaming/Strive/mods/". They won't do anything there and it is a bad place to put them, so delete those copies. The "portraits" and "bodies" folders should be located in ".../AppData/Roaming/Strive exactly as you said you still have them. As long as you did not change the in-game paths for those folders (found through the manual image selection interface), then they should be located exactly where they need to be.

The mod files should be extracted from the zip folder and the folder called "randomportraits" should be put in ".../AppData/Roaming/Strive/mods/", so you should have ".../AppData/Roaming/Strive/mods/randomportraits/info.txt".

All together it should look like this.

• Strive
  • portraits
    • < your images or image pack >
  • bodies
    • < your images or image pack >
  • mods
    • randomportraits
      • info.txt
      •  < rest of mod files >

To install the mod, simply start the game, open the Mods menu, select "randomportraits", press "Apply", and when the report appears with "No errors recorded." press "Exit Game". There is a guide for using and making mods if you press the "Help" button in the top right of the Mods menu.

Now to cover the likely causes of the problems you are having, as it did not appear to me that any of what you said accounted for your problem. This is because Strive comes with random portrait and body image assignment without any mods, so at the very least you should have images that match the race of the person when you start a new game. This mod adds matching for attributes of the person besides race.

If you added the images to the game folder after you started your progress, then you can either manually select the images through the "Customization" tab for the slave or you can add the Bugfix mod, which will attempt to give everyone without a portrait a random image when you load the progress.

If you do not have images assigned when starting a new progress, then your problem is most likely that your images are not tagged correctly. To tag the images they must either be in a folder named for the tag or the file name must include the tag. Without mods, the only tag needed is the race names as found in game but without spaces. For this mod, you will also need the sex and age. 

If you get portraits assigned but not full body images, then your problem is most likely that the paths of the two images do not match. They should look something like this:

.../portraits/Lamia/Female/Adult/Purple SkinL TitsM+TitsB #MGQ [bcad17e8].png
.../bodies/Lamia/Female/Adult/Purple SkinL TitsM+TitsB #MGQ [bcad17e8].png